def print_work1(char,num):
    print(char*num)


def print_work2(char,num):
    print(num)


def print_work3(char,num):
    print(char)


if __name__ == '__main__':
    char='_'
    num=20
    print_work1(char,num)
    print_work2(char,num)
    print_work3(char,num)